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Invalid argument supplied for foreach()
...ay. Use isset() or is_array() or both, entirely depending on your scenario etc.
– James
Jul 22 '16 at 13:26
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CSS background opacity with rgba not working in IE 8
...deserve to be punished by not seeing border radius, transparent background etc.
– Evgeny
Jul 10 '13 at 20:16
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Difference between \w and \b regular expression meta characters
...ren't word characters include whitespace, beginning and end of the string, etc.)
\w matches a, b, c, d, e, and f in "abc def"
\b matches the (zero-width) position before a, after c, before d, and after f in "abc def"
See: http://www.regular-expressions.info/reference.html/
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How should a model be structured in MVC? [closed]
...naware of storage - neither from where (SQL database, REST API, text file, etc.) nor even if they get saved or retrieved.
Data Mappers
These objects are only responsible for the storage. If you store information in a database, this would be where the SQL lives. Or maybe you use an XML file to store...
Why should I use version control? [closed]
...ou probably know by now), you can use any distributed VCS (git, mercurial, etc) locally, without a server. You could also use a centralised VCS (CVS, SVN, etc.) locally, but it'd be much more annoying to set up, and wouldn't provide much benefit. Regardless of the VCS you use, you can have it on a s...
MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m_RBtGroup3);
DDX_Control(pDX, IDC_RADIO9, m_RBtGroup4);
}
问题一：如何更改RadioButton默认值？？？
方法1
在定义控件变量时，默认变量初值为-1，表示此组的任何RadioButton均不被选中，如果需要改变初始默认按钮的设置情况，...
When should I use a trailing slash in my URL?
... build a hierarchy under it (e.g. /about-us/company/, /about-us/products/, etc.) as needed, without changing the published URL. This gives you a great flexibility.
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How to make a website secured with https
...ou can buy a certificate for yourself from one of the places like Symantec etc. The certificate would contain your public/private key pair, along with other things.
You wont need to do anything in your source code, and you can still continue to use your Form Authntication (or any other) in your sit...
Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
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shell> ldd /path/to/nginx
libluajit-<VERSION>.so => not found
此类问题通常使用ldconfig命令就能解决：
shell> echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local_lib.conf
shell> ldconfig
再试着启动Nginx看看，应该就OK了。
应用
我们先用一个简单的程序...
How do you make sure email you send programmatically is not automatically marked as spam?
...ount on as many major email providers as possible (gmail/yahoo/hotmail/aol/etc). If you make changes to your emails, either major rewording, changes to the code that sends the emails, changes to your email servers, etc, make sure to send test messages to all your accounts and verify that they are no...